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1986 2.8L to Turbo 3.4L to turbo 4.0L to 4.6 Turbo Stroker MJ....


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I visited my dad today and realized I haven't touched my Jeep since September! I went to start it today and it started first crank! I usually start it weekly, but life got in the way. The Cab job seems super daunting so I haven't given it any thought since getting the parts Comanche. I need to relight my Jeep Fire I really really really miss driving the MJ. Its by far my favorite vehicle to drive around and its been over a year since I've had it fully up and running. 

 

I also noticed after reading through this thread that I've been super optimistic about the timing that I'm going to get things done 😂 

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  • 4 months later...

The Cab roof is all done! I also came across a 1996 Xj overhead console at a Salvage yard in St. Louis Missouri! Apparently these are pretty rare so we retro fitted it for the MJ cab somehow the original computer is still working, I had o buy a $40 ambient air temp sensor for the temp to work, but I think its super cool to have in a older vehicle! The Wiper motor didn't survive the submersion, so i picked one of those up too and swapped it out! The interior is completely redone now! I'm just waiting on some Cavfab steering parts to come in the main and she should be all road ready again!

 

We reinforced the headliner with some fiberglass and fiberglass bondo and its holding its shape awesome!

 

As for the Turbo, I've just been enjoying the whistle sound for now, I have a tuner close by that said hes ready to rock with it whenever I'm ready! I'm glad HP tuners now supports older Chrysler. I reached out to Ryan Hogan a few months back but he seems to be a busy man! Tuning is something I've always been interested in, but last time I tried it cost me an engine hahah! 

 

At this point the only original 1986 parts on this Jeep are the Body and Headliner! I never thought id be at this point 8 years ago when I was 16!  

 

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  • 6 months later...
  • 3 months later...

So, I blew up a piston skirt on the 4.0 when i was having a fueling issue. It would backfire under boost and I think it stressed the piston too much. So I went ahead and had it bored .030 over and ordered a 4.6 stroker kit from Cleggs! (They were awesome to work with, Highly Recommended) Scat Forged Rods, Icon Pistons, MLS Gasket ARP Bolts for the main caps and heads (The head studs are on back order for 6 months as of now) All the fun stuff! I'm still at 6psi but working my way up to 10 with my tuner! I'm sure it could hold upwards of 20, but I have a 1.5 BAR Honda map sensor so i can't exceed 12psi and I don't want my tuner to have to completely remap all the tables! Its probably going to be far more reliable with 10psi as well! Here are the pictures, It took about a month from start to finish but most of that time was waiting on parts and the Machine Shop. Id say around 4 days of working time! 

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  • Pete M changed the title to 1986 2.8L to Turbo 3.4L to turbo 4.0L to 4.6 Turbo Stroker MJ....

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